1 : a branch of science concerned with the interrelationship of organisms and their environments. 2 : the totality or pattern of relations between organisms and their environment. 3 : human ecology. 4 : environment, climate the moral ecology; also : an often delicate or intricate system or complex the ecology of language.
published its Final Rule in the Federal Register placing tramadol into Schedule IV effective August 18, 2014. (Tramadol is a centrally acting opioid analgesic first approved for use in the U.S. in 1995 under the name âUltramâ.
Although Ambien is a controlled substance, it is considered a Schedule IV drug because the potential for abuse is low. Unlike Schedule II medications, prescriptions for Ambien can be filled up to six times total, and the prescriptions can be faxed, phoned, or written.